Answer:
20%
Step-by-step explanation:
660:3300*100 =
(660*100):3300 =
66000:3300 = 20
Answer:
B
Step-by-step explanation:
brainlist is tnx:))
Answer:
542
Step-by-step explanation:
We are required to find the sample size at 98% confidence interval in this question
E = 0.04
P* = 20% = 0.20
n = p* x (1-p)(Zα/2÷E)²
α = 1 - 0.98
= 0.02
To get Critical value
= 0.02/2 = 0.01
The critical value at 0.01 is 2.33
Inserting values into formula:
O.2 x 0.8(2.33/0.04)²
= 0.8 x 0.2 x 58.25²
= 542.89
The value of n must be an integer therefore the answer is 542.
Answer:
She can choose her electives in 20 ways.
Step-by-step explanation:
The order in which she chooses the courses is not important, which means that the combinations formula is used to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
How many ways can she choose her electives?
3 electives from a set of 6. So
She can choose her electives in 20 ways.
Answer:
x=62 and y=59
Step-by-step explanation:
59+59=118
180-118=62=x
180-62=118
118/2=59=y